Sub-ppm Evanescent Waveguide Sensor for Heavy Metal Detection in Water
2024 47th ICT and Electronics Convention, MIPRO 2024 - Proceedings, Page: 1716-1720
2024
- 1Citations
- 2Captures
Metric Options: CountsSelecting the 1-year or 3-year option will change the metrics count to percentiles, illustrating how an article or review compares to other articles or reviews within the selected time period in the same journal. Selecting the 1-year option compares the metrics against other articles/reviews that were also published in the same calendar year. Selecting the 3-year option compares the metrics against other articles/reviews that were also published in the same calendar year plus the two years prior.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Conference Paper Description
We present an assessment of the performance of a lab-on-chip optoelectronic device consisting of a polymeric waveguide and a hydrogenated amorphous silicon (a-Si:H) photodetector, both integrated on a compact BK7 glass substrate with an overall surface area of a few square centimeters. The system detects the concentration of an analyte in a sample by measuring the light power drop as a result of the optical interaction between the solution droplet and the guided radiation. The power variation is related to changes in refractive index of the sample and is measured by an a-Si:H photosensor. The efficiency of such device has been assessed for a solution of copper (Cu) and mercury (Hg) performing numerical simulations in the red spectrum (632.8 nm). The sample-chip interaction is inspected for different parameters and the outcomes are combined with the a-Si:H detector's experimentally-obtained performance. The reported sensitivity of the sensor reaches up to 25 pA/ppm for Cu and 17 pA/ppm for Hg. Additionally, limits of detection of 6 ppb for Cu and 9 ppb for Hg were achieved. Performances shown by this extremely compact, inexpensive and easy-to-use chip seem very promising for applications related to health and environment monitoring, such as in-situ detection of heavy metals in water.
Bibliographic Details
Institute of Electrical and Electronics Engineers (IEEE)
Provide Feedback
Have ideas for a new metric? Would you like to see something else here?Let us know